Cassy's a backpacking student travelling around New Zealand—until the day she accepts a lift in a van full of smiling strangers; her life is changed forever. She's soon entangled in Gethsemane, a community led by Justin Calvin, a visionary leader with a violent past. As Cassy falls under Gethsemane's spell, a new identity is built for her. But when her father's illness reunites her with her family, she's forced to confront the hidden darkness of her world.